6629780023 has 2 divisors, whose sum is σ = 6629780024. Its totient is φ = 6629780022.

The previous prime is 6629780009. The next prime is 6629780041. The reversal of 6629780023 is 3200879266.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6629780023 - 2²¹ = 6627682871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6629787023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3314890011 + 3314890012.

It is an arithmetic number, because the mean of its divisors is an integer number (3314890012).

Almost surely, 2^6629780023 is an apocalyptic number.

6629780023 is a deficient number, since it is larger than the sum of its proper divisors (1).

6629780023 is an equidigital number, since it uses as much as digits as its factorization.

6629780023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 6629780023 is about 81423.4611337543. The cubic root of 6629780023 is about 1878.5944699594.

The spelling of 6629780023 in words is "six billion, six hundred twenty-nine million, seven hundred eighty thousand, twenty-three".